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Finding the Fourth Proportional to 6,686.87, 9,227.94 and 4,169.99

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Solution

The fourth proportional to 6,686.87, 9,227.94 and 4,169.99 is: 5,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.87 : 9,227.94 = 4,169.99 : x
  2. Step 2: Convert to fraction form
    6,686.87/9,227.94 = 4,169.99/x
  3. Step 3: Cross multiply
    6,686.87x = 9,227.94 × 4,169.99
  4. Step 4: Simplify right side
    6,686.87x = 38,480,417.52
  5. Step 5: Solve for x
    x = 38,480,417.52/6,686.87
  6. Step 6: Final answer
    x = 5,754.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.